Asus PRIME X399-A [36/96] Chapter 1

Asus PRIME X399-A [36/96] Chapter 1
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Chapter 1: Product Introduction
Chapter 1
8. ATX power connectors (24-pin EATXPWR; 8-pin EATX12V_1; 4-pin EATX12V_2)
TheseconnectorsareforATXpowersupplyplugs.Thepowersupplyplugsare
designedtottheseconnectorsinonlyoneorientation.Findtheproperorientationand
pushdownrmlyuntiltheconnectorscompletelyt.
• DONOTconnectthe4-pinpowerplugonly,themotherboardmayoverheatunder
heavyusage.
• Ensuretoconnectthe8-pinpowerplug,orconnectboththe8-pinand4-pinpower
plugs.
• Forafullyconguredsystem,werecommendthatyouuseapowersupplyunit
(PSU)thatcomplieswithATX12VSpecication2.0(orlaterversion)andprovidesa
minimumpowerof30A.
• WerecommendthatyouuseaPSUwithahigherpoweroutputwhenconguringa
systemwithmorepower-consumingdevices.Thesystemmaybecomeunstableor
maynotbootupifthepowerisinadequate.
• Ifyouwanttousetwoormorehigh-endPCIExpressx16cards,useaPSUwith
1000Wpowerorabovetoensurethesystemstability.
PRIME X399-A ATX power connectors
A
B
C
EATX12V_2
+12V DC
+12V DC
GND
GND
PIN 1
B
EATX12V_1
+12V DC
+12V DC
+12V DC
+12V DC
GND
GND
GND
GND
PIN 1
A
EATXPWR
C
PIN 1
GND
+5 Volts
+5 Volts
+5 Volts
-5 Volts
GND
GND
GND
PSON#
GND
-12 Volts
+3 Volts
+3 Volts
+12 Volts
+12 Volts
+5V Standby
Power OK
GND
+5 Volts
GND
+5 Volts
GND
+3 Volts
+3 Volts

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